(a) impressed in base c.r.: C / C (b) impressed in outside rim of base l.l.: O O (c) impressed in base c.r.: O / O (d) impressed in outside rim of base l.l.: O (e) impressed in outside rim of base in rear l.l.: O (f) impressed in base u.c.: O O (g) impressed in base c.l.: (incomplete circle) / O (i) impressed in base l.c.: O O (j) impressed in outside rim of base l.r.: O
